APA Citation

Piaget, J. 1., & Piaget, J. 1. (1977). Estudios sociológicos. Barcelona: Ariel.

Chicago Style Citation

Piaget, Jean 1896-1980, and Jean 1896-1980 Piaget. Estudios Sociológicos. Barcelona: Ariel, 1977.

MLA Citation

Piaget, Jean 1896-1980, and Jean 1896-1980 Piaget. Estudios Sociológicos. Barcelona: Ariel, 1977.

Warning: These citations may not always be 100% accurate.